28024298 has 4 divisors (see below), whose sum is σ = 42036450. Its totient is φ = 14012148.

The previous prime is 28024289. The next prime is 28024301. The reversal of 28024298 is 89242082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89242082 = 2 ⋅44621041.

It can be written as a sum of positive squares in only one way, i.e., 21557449 + 6466849 = 4643^2 + 2543^2 .

It is a super-2 number, since 2×28024298² = 1570722556785608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7006073 + ... + 7006076.

Almost surely, 2^28024298 is an apocalyptic number.

28024298 is a deficient number, since it is larger than the sum of its proper divisors (14012152).

28024298 is a wasteful number, since it uses less digits than its factorization.

28024298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14012151.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 28024298 is about 5293.7980694394. The cubic root of 28024298 is about 303.7467087429.

The spelling of 28024298 in words is "twenty-eight million, twenty-four thousand, two hundred ninety-eight".